Gohberg, Israel ; Goldberg, Seymour <br/><br/>
Basic operator theory 
/ by Israel Gohberg 
 - New York:  Birkhauser Boston,  1980. 
 - xiii, 285p. 
<br/><br/><label>ISBN: </label>3764330287 
<br/><br/><label>Dewey Class. No.: </label>515.724  / GOH/B